High-end quality and long life . High precision, Low noise 15 yearstrade experience Best price . Prompt delivery ZDF taper roller bearing (33 series)1.high load capacity 2.better lubricating condition 3.better impact-proof performance Brand name ZDFSeriessingle, double and four rowsRings Materialbearing steel , carbon steelID size20-200mmOD size40-300mmQuality standardISO9001:2000 ...
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